The projection operator onto the physical space is investigated in the boson expansion techniques. An explicit expression for the projection operator contains many body terms. From this expression, ...

Abstract: Domain adaptation (DA)-based subspace-learning method is widespread in the field of mechanical fault diagnosis (MFD) with limited training samples. However, most current methods focus on ...

The Boeing B‑52 Stratofortress is the archetype of the enduring combat aircraft, a bomber that has outlived the factories ...

Abstract: Coherently distributed (CD) sources are typically characterized by their direction of arrival (DOA) and angular spread. Traditional distributed signal parameter estimation (DSPE) methods for ...

Cash. Live Nation events in Europe have deployed wristbands with chips for payments since 2022, and the trend has swept ...

National security, unlocked. Each Thursday, host Mary Louise Kelly and a team of NPR correspondents discuss the biggest national security news of the week. With decades of reporting from battlefields ...

Terms apply to American Express benefits and offers. Visit americanexpress.com to learn more. Any time you tap, swipe or dip a credit or debit card at checkout or enter your card number online, you ...

Who are the Delta Force operators? The multiplayer experience in Team Jade's reimagining of Delta Force: Black Hawk Down takes its cues from extraction shooter mainstays, spliced with the ...

A transport professor told The Journal that driverless technology is now the norm for new rail systems internationally.

Routine reactor emissions pose no meaningful health risk to the US workers and population, a health physicist and a nuclear ...

From high-stakes political contests to big-ticket real estate developments, here's what to watch in Chicago business in 2026.